| SStephen AdamiRichard Reenactor | Richard Reenactor |
| KKrista AlesDr. Vanessa Byers | Dr. Vanessa Byers |
| VValerie BlackAnne Reenactor | Anne Reenactor |
| RRyan BlackburnCIA Agent #2 | CIA Agent #2 |
| GGarland BuffaloGen. Douglas Sanborn | Gen. Douglas Sanborn |
| PPeter J. CalvinSoviet Scientist | Soviet Scientist |
| CCater CartwrightAden Reenactor (Age 5) | Aden Reenactor (Age 5) |
| TTrey CartwrightDr. Edward Yarborough | Dr. Edward Yarborough |
| BBen EverettRichard Page | Richard Page |
| CChristopher FenleyAden Reenactor | Aden Reenactor |
| TTim HogleRichard Reenactor (Age 53) | Richard Reenactor (Age 53) |
| JJustin Lee HughesCIA Agent #1 | CIA Agent #1 |
| RRicky KennedyJim North, News Anchor | Jim North, News Anchor |
| NNoah LariveRichard Reenactor (Age 14) | Richard Reenactor (Age 14) |
 Elizabeth LestinaAnne Page | Anne Page |
 Brad MauleNarrator (voice) | Narrator (voice) |
 Daniel W. MayEdward Page (Younger) / Aden Page | Edward Page (Younger) / Aden Page |
| DDudley MayNightmare Figure / Edward Reenactor (1940s) | Nightmare Figure / Edward Reenactor (1940s) |
| RRoy MayEdward Page (Older) | Edward Page (Older) |
| HHerbert MidgleyAden Reenactor (Age 44) | Aden Reenactor (Age 44) |
| HHannah PattonPatient | Patient |
 Peyton PauletteDr. Jack Fincher / Soviet Spy | Dr. Jack Fincher / Soviet Spy |
| DDavid RaineRichard (voice) | Richard (voice) |
 Fazia RizviDr. Helen Cagle | Dr. Helen Cagle |
| JJody RyanDorothy Lister | Dorothy Lister |
| MMicah ScottRichard Page (Age 5) | Richard Page (Age 5) |
| BBill SmallDr. Adam Lindquist | Dr. Adam Lindquist |
| MMichael TubbsKevin Ulrich | Kevin Ulrich |
